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I got a P-105 recently, to replace my P95. I'm still working on tweaking it to my liking, but basically, I'm enjoying it, and I think it's a worthwhile improvement from the P95.

Anyways, I was wondering if any other P105 owners might know the answer to the question of controlling the 'rotary speaker' (Leslie) slow/fast speed. The manual says you can control it using the left pedal of the optional 3-pedal attachment (LP-5A). The 3-pedal unit is designed for the permanent, wooden(particle-board), home-use stand.

I use the P105 for gigs, so I don't have that home-style stand, and I won't be getting the 3-pedal unit. I use an x-stand, and a standard one-pedal sustain pedal.

So, are there any other ways to control the rotary speaker slow/fast speed?

I'm not sure why I'm even bothering to ask, because I'll probably never use any sounds except piano, rhodes, and possibly bass. The drum beats might be fun for practicing with. Still, you never know.

Speaking of sustain pedals...

I like to use Roland sustain pedals that have that swing-out rubber base which keeps the pedal from sliding around.

I have a Roland DP-10 pedal, which can work in either on/off mode, or continuous mode, for pianos that support half-pedalling.

I found that the DP-10 doesn't work in continuous mode with the P105, only in on/off mode. I suppose I could use a Yamaha pedal that supports half-pedalling, but I'm hooked on that swing-out rubber base thing on the Roland one.

The other pedal input is not a standard 1/4" input, it's a small, round, multi-pin connector, the kind you might see on the back of a computer. So, if you could find a pedal with that kind of connector, then it might be possible to do what you suggest. But, I don't know what kind of pedal that would be.

The triple pedal connector looks a lot like an old Mac mini din 8 cable connector, with maybe less posts. It's hard to tell by enlarging web photos.

I'm getting a P105 next week myself, and I think that the jazz organ might be ok in a pinch, if the Leslie could be slowed down, so I'll probably be experimenting too.

What would probably work is getting a cable with similar connectors, chopping it, and touching different pairs of connectors until it affects the Leslie speed, then wiring up a footswitch. Or else, a company like Digikey might have the right connector.